Correcting exercises...

Hi class, I'm Maite :)

Today we haven't done any special, we have corrected the exercises of last week (56, 57, 60 and 64).

In the exercise 64 Mario has explained us that:

a) (5 2 x 25 2)3 = 5 6 x 25 6 = 56 x (52)6 = 5 6 x 5 12 = 5 18

* We can't do a multiplication of two powers if they don't have the same base, but in this    case 25 is a multiple of 5, so it can be simplyfied as 52.

So the multiplication remains as : 5 6 x (5 2)6

We don't have finished the exercise because we have angered Mario with our      behavior.  
 Next lesson we should behave better !!!

  Red: the exponent